Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
In Radlett, the onset of April comes with a modest high-temperature shift, transitioning from March's cool 10.2°C (50.4°F) to a refreshing 13.8°C (56.8°F). Radlett registers a consistent average low-temperature of 4.8°C (40.6°F) during April.Humidity
The average relative humidity in April in Radlett is 80%.Rainfall
In Radlett, in April, during 14.5 rainfall days, 22mm (0.87") of precipitation is typically accumulated. Throughout the year, there are 159.2 rainfall days, and 359mm (14.13") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Radlett.Daylight
The average length of the day in April is 13h and 55min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:35 pm. On the last day of April, in Radlett, sunrise is at 5:33 am and sunset at 8:23 pm BST.
Sunshine
In April, the average sunshine in Radlett is 7.7h.UV index
In April, the average daily maximum UV index in Radlett is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 3 in April leads to these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the average April temperature in Radlett?
What is the average humidity in April in Radlett?
How much does it rain in Radlett in April?
When it does not snow in Radlett?
Does it snow in Radlett in April?
How many hours of daylight does Radlett have in April?
When are sunrise and sunset in April in Radlett?
How long on average sun shines in April in Radlett?
What is the UV index reading in April in Radlett?
Average temperature in April
Radlett, United Kingdom
- Average high temperature in April: 13.8°C
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in April: 4.8°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in April
Radlett, United Kingdom
- Average pressure in April: 1015.6mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in April
Radlett, United Kingdom
- Average wind speed in April: 13.8km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in April
Radlett, United Kingdom
- Average humidity in April: 80%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (76%).
Average rainfall in April
Radlett, United Kingdom
- Average rainfall in April: 22mm
The wettest month (with the highest rainfall) is June (44mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in April
Radlett, United Kingdom
- Average rainfall days in April: 14.5 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is September (10.7 days).
Average snowfall in April
Radlett, United Kingdom
- Average snowfall in April: 0mm
The month with the highest snowfall is December (20mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Radlett, United Kingdom
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Radlett, United Kingdom
- Average daylight in April: 13h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in April: 7h and 4min
The months with the most sunshine are July and August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in April
Radlett, United Kingdom
- Average sunshine days in April: 12.2 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in April
Radlett, United Kingdom
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Radlett, United Kingdom
- Average cloud cover in April: 49
The months with the most cloud cover are February and November (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in April
Radlett, United Kingdom
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
Radlett, United Kingdom
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